I think [name_f]Marcella[/name_f] could work [name_f][/name_f]- sounds different enough to [name_f]Matilda[/name_f] to me [name_f][/name_f]- but [name_f]Marcelle[/name_f] is also gorgeous and I like that it shares a similar ending to [name_f]Delphine[/name_f] (so then you’ve got two -a’s and two -e’s)
[name_f][/name_f]For what it’s worth, [name_f]Marcelle[/name_f] K- [name_f][/name_f] ‘Selkie’ could still work for me [name_f][/name_f]- a bit like [name_f]Catherine[/name_f] ‘Kate’ or [name_m]Christopher[/name_m] ‘Kit’ work just fine.
[name_f][/name_f][name_f]Pearl[/name_f] [name_f]Marcella[/name_f] is gorgeous too!